Home / 554,540.20-831,810.30-273,999.40

Finding the Fourth Proportional to 554,540.20, 831,810.30 and 273,999.40

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Solution

The fourth proportional to 554,540.20, 831,810.30 and 273,999.40 is: 410,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,540.20 : 831,810.30 = 273,999.40 : x
  2. Step 2: Convert to fraction form
    554,540.20/831,810.30 = 273,999.40/x
  3. Step 3: Cross multiply
    554,540.20x = 831,810.30 × 273,999.40
  4. Step 4: Simplify right side
    554,540.20x = 227,915,523,113.82
  5. Step 5: Solve for x
    x = 227,915,523,113.82/554,540.20
  6. Step 6: Final answer
    x = 410,999.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.